Global Patent Index - EP 2657759 A3

EP 2657759 A3 20140514 - Terahertz wave generation element, terahertz wave detection element, and terahertz time domain spectroscope device

Title (en)

Terahertz wave generation element, terahertz wave detection element, and terahertz time domain spectroscope device

Title (de)

Element zur erzeugung von Terahertz-wellen, Element zur detektion von Terahertz-wellen und Terahertz-zeitbereichsspektroskop

Title (fr)

Elément générateur d'ondes térahertz, élément de détection d'ondes térahertz et dispositif de spectroscopie dans le domaine temporel

Publication

EP 2657759 A3 20140514 (EN)

Application

EP 13177405 A 20110530

Priority

  • JP 2010127891 A 20100603
  • JP 2011104803 A 20110510
  • EP 11727806 A 20110530

Abstract (en)

[origin: WO2011152542A1] A terahertz wave generation element is provided, which includes: an optical waveguide including a core (4) of electro - optic crystal; an optical coupler (7) for extracting a terahertz wave generated from the optical waveguide when light propagates in the optical waveguide to a space; and a reflecting layer (6) disposed on the opposite side to the optical coupler with respect to the core of the optical waveguide, so as to reflect the generated terahertz wave. According to the element, it is possible to provide a generation element that can generate a relatively high intensity terahertz wave efficiently by photoexcitation or generate a terahertz wave having a relatively narrow pulse width, so as to flexibly control waveform shaping of the generated terahertz wave.

IPC 8 full level

G01N 21/35 (2014.01); G01N 21/3586 (2014.01); G02F 1/35 (2006.01); G02F 1/365 (2006.01); G02F 1/377 (2006.01)

CPC (source: EP US)

G02B 6/4296 (2013.01 - US); G02F 1/353 (2013.01 - US); G02F 1/3534 (2013.01 - EP US); G02F 1/3551 (2013.01 - US); G02F 1/365 (2013.01 - EP US); G02F 2203/07 (2013.01 - EP US); G02F 2203/13 (2013.01 - EP US); G02F 2203/22 (2013.01 - EP US); Y10T 156/10 (2015.01 - EP US)

Citation (search report)

  • [Y] WO 2008025746 A1 20080306 - FORSCHUNGSVERBUND BERLIN EV [DE], et al
  • [Y] US 2006268945 A1 20061130 - MINAMIDE HIROAKI [JP], et al
  • [IDY] BODROV S B ET AL: "Highly efficient optical-to-terahertz conversion in a sandwich structure with LiNbO3 core", OPTICS EXPRESS, OSA (OPTICAL SOCIETY OF AMERICA), WASHINGTON DC, (US), vol. 17, no. 3, 29 September 2009 (2009-09-29), pages 1871 - 1879, XP002664131, ISSN: 1094-4087
  • [IA] SERGEY B BODROV ET AL: "Efficient Cherenkov emission of terahertz radiation from an ultrashort laser pulse propagating along a waveguiding structure with nonlinear core", INFRARED AND MILLIMETER WAVES, 2007 AND THE 2007 15TH INTERNATIONAL CONFERENCE ON TERAHERTZ ELECTRONICS. IRMMW-THZ. JOINT 32ND INTERNATIONAL CONFERENCE ON, IEEE, PISCATAWAY, NJ, USA, 2 September 2007 (2007-09-02), pages 194 - 195, XP031249558, ISBN: 978-1-4244-1438-3
  • [YD] SUIZU K ET AL: "Extremely frequency-widened terahertz wave generation using Cherenkov-type radiation", OPTICS EXPRESS, OSA (OPTICAL SOCIETY OF AMERICA), WASHINGTON DC, (US), vol. 17, no. 8, 7 April 2009 (2009-04-07), pages 6676 - 6681, XP002638793, ISSN: 1094-4087
  • [Y] THEUER M ET AL: "Efficient generation of Cherenkov-type terahertz radiation from a lithium niobate crystal with a silicon prism output coupler", APPLIED PHYSICS LETTERS, AIP, AMERICAN INSTITUTE OF PHYSICS, MELVILLE, NY, US, vol. 88, no. 7, 17 February 2006 (2006-02-17), pages 71122 - 071122, XP012082835, ISSN: 0003-6951, DOI: 10.1063/1.2177540
  • [A] LI M ET AL: "Time-domain dielectric constant measurement of thin film in GHz-THz frequency range near the Brewster angle", APPLIED PHYSICS LETTERS, AIP, AMERICAN INSTITUTE OF PHYSICS, MELVILLE, NY, US, vol. 74, no. 15, 12 April 1999 (1999-04-12), pages 2113 - 2115, XP012022379, ISSN: 0003-6951, DOI: 10.1063/1.123773
  • [Y] AMELIA G. VANENGEN SPIVEY ET AL: "Brewster 's angle attenuator for terahertz pulses", APPLIED OPTICS, vol. 41, no. 36, 20 December 2002 (2002-12-20), pages 7637, XP055111973, ISSN: 0003-6935, DOI: 10.1364/AO.41.007637

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

WO 2011152542 A1 20111208; CN 102918456 A 20130206; EP 2577393 A1 20130410; EP 2657759 A2 20131030; EP 2657759 A3 20140514; JP 2012014155 A 20120119; JP 5967867 B2 20160810; US 2013037721 A1 20130214; US 2015212388 A1 20150730; US 9024260 B2 20150505; US 9304373 B2 20160405

DOCDB simple family (application)

JP 2011062858 W 20110530; CN 201180026344 A 20110530; EP 11727806 A 20110530; EP 13177405 A 20110530; JP 2011104803 A 20110510; US 201113641544 A 20110530; US 201514680640 A 20150407